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<head>
<meta charset="utf-8">
<title>作业界面</title>
<style>
	*{
		padding: 0;
		margin: 0;
	}
	body{
		width:1500px;
		height: 710px;
		background-image: url(http://wu-mu-hengze.gitee.io/web/picture/beijing7.jpg);
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	#bb div{
		width: 200px;
		height: 200px;
		margin: 0 auto;
		border-radius: 50%;
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    img{
        width: 200px;
		height: 200px;
		margin: 0 auto;
		border-radius: 50%;
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	#bb li{
        opacity: 0.7;
		width: 220px;
		height: 50px;
		list-style: none;
		background-color: azure;
		margin: 50px auto;
		text-align: center;
		line-height: 50px;
	}
	#aa{
		width: 1000px;
		height: 700px;
		float: right;
		border: 5px dashed #B1A9AA;
		margin-right: 50px;
		background-image: url(http://wu-mu-hengze.gitee.io/web/picture/beijing8.jpg);
	}
   /* #aa ul{
		width: 1000px;
		height: 200px;
		margin-top: 25px;
	}*/
	#aa ul li{
		float: left;
		list-style: none;
		width: 130px;
		height: 150px;
		background-image: url(http://wu-mu-hengze.gitee.io/web/picture/beijing9.jpg);
		margin-left:50px;
		margin-top: 50px;
		text-align: center;
		line-height: 150px;
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	a{
		width: 130px;
		height: 150px;
		display: inline-block;
		text-decoration: none;
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	a:hover{
		background-color: antiquewhite;
	}
</style>
</head>

<body>
	<div id="aa">
		<ul>
			<li><a href=" http://wu-mu-hengze.gitee.io/web/first.html" target="_blank">第一次作业</a></li>
			<li><a href="http://wu-mu-hengze.gitee.io/web/guanggao.html" target="_blank">第二次作业</a></li>
			<li><a href="#" target="_blank">没有作业</a></li>
			<li><a href="#" target="_blank">没有作业</a></li>
			<li><a href="#" target="_blank">没有作业</a></li>
		</ul>
		<ul>
			<li><a href="#" target="_blank">没有作业</a></li>
			<li><a href="#" target="_blank">没有作业</a></li>
			<li><a href="#" target="_blank">没有作业</a></li>
			<li><a href="#" target="_blank">没有作业</a></li>
			<li><a href="#" target="_blank">没有作业</a></li>
		</ul>
		<ul>
			<li><a href="#" target="_blank">没有作业</a></li>
			<li><a href="#" target="_blank">没有作业</a></li>
			<li><a href="#" target="_blank">没有作业</a></li>
			<li><a href="#" target="_blank">没有作业</a></li>
			<li><a href="#" target="_blank">没有作业</a></li>
		</ul>
	</div>
	<div id="bb">
		<div><img src="http://wu-mu-hengze.gitee.io/web/picture/beijing11.jpg" alt=""></div>
		<li>姓名：伍恒</li>
		<li>学号：199000949</li>
		<li>电话：15095946425</li>
		<li>邮箱:2900381341@qq.com</li>
	</div>
</body>
</html>